Luminous sign-plate.



A. V. RICE.

LUMINOUS SIGN PLATE. APPLIOATION FILED MAY 14, 1910.

1,048,343. Patented Dec. 24, 1912.

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LUMINOUS SIGN-PLATE.

Specification of Letters Patent.

Patented Dec. 24, 1912.

Application filed May 14,1910. Serial No. 561,368.

To all whom it may concern:

Be it known that l, Anmson V. Bron, acitizenof the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in'Luminous Sign-Plates, of which the following-is a specification.

This invention relates to sign plates, and more particularly to luminous plates.

One object of the invention is to provide a sign plate which is both water and air tight.

A further object is to provide a simple and efiicient means of fastening the plate within a frame and providing means for making the frame both water and air tight.

Other objects and advantages will be apparent from the following description, and it will be understood that changes in the specific structure shown and described may be made Within the scope of the claim without departing from the spirit of the invention.

In the drawings: Figure 1 is a front elevation of a sign made in accordance with my invention, Fig. 2 is a vertical longitudi nal sectional view of the sign. 1

Referring to the drawings 1 represents a frame having the inwardly extending flange 2, the under corner of which is upwardly beveled at 2 and adapted to receive the beveled edge of the plate glass 3. A rubber gasket 4 is next placed against the glass and a mat 5 is laced on top of the rubber gasket. lhis Forms a Water proof and air tight joint. Against this mat 5 is placed a plate 6 having its outer face coated with a luminous paint. On the surface of this plate are adapted to be formed letters or numbers for the sign. If desired, theletters or numbers may be made with the luminous paint and the rest of the surface left darkened so that the letters or numbers will stand out from the surface. i

The plate 6 is made'in sections so that a series of letters or numbers may be interchangeably placed in the frame.

The mat 5 has an opening in its center which provides 'an air space between the glass and the plate 6, and prevents any condensation of moisture which might form on the glass coming in contact with the surface of the late 6.

As s own in Fig. 2, the back member is formed of sheet metal, and is bent as at 8 to provide the-bearing surface 10', which is corrugated to engage in the gasket 12. The vertical portion 12' is formed at its lower edges with the perforated ears 11', to receivc the screws 9. The ortion 7 of the back member will be slig tly bowed when the parts are screwed together, as shown.

With this sign having the luminous surface it will readily be capable of being seen in the dark and by means of the gaskets and the air spaces the condensation of moisture collecting on the glass or the backs would be prevented.

From the thatI have provided a simple and eflicient sign and one which will be readily seen in the dark and has provision for preventing the destruction of the surface of the sign.

What is claimed is: A

A sign comprising a frame, a beveled glass seated within the frame, an inwardly directed flange to receive the beveled edge of the glass thereagainst, a rubber gasket in the frame and engaging with one face against the inner faces of the glass and the foregoing it will'readily be seen flange of the frame, an open mat disposed against the opposite face of the gasket, a series, of interchangeable letter sign plates disposed against the open mat to form a dead air space between the glass and the said plates, a second gasket disposed against the letter sign plates, a back member having an outwardly disposed attaching flange secured to said frame, said back member being provided with an upstanding peripheral corrugated rib for engagement against the second-named gasket, whereby a hollow dead air space is formed between the sign plates and said back member.

In testimony whereof I affix my signature, in presence of two witnesses.

' ADDISON V. RICE. Witnesses:

JOHN F. Brenna, En LANTZ. 

